Sonar Reasoning Pro Paid vs 
Claude Haiku 4.5 Paid
Sonar Reasoning Pro vs Claude Haiku 4.5 compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
Sonar Reasoning Pro — full profile › · Claude Haiku 4.5 — full profile ›
Prices & specs refreshed from live data · olud.ai
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
$8 /M outputManaged API (no infra to run)
$5 /M outputManaged API (no infra to run)
Sonar Reasoning Pro vs Claude Haiku 4.5 specs
| Spec | Sonar Reasoning Pro | Claude Haiku 4.5 | Winner |
|---|---|---|---|
| Maker | Perplexity | Anthropic | – |
| Type | Proprietary | Proprietary | – |
| Context window | 128K tokens | 200K tokens | |
| Input price | $2/M | $1/M | |
| Output price | $8/M | $5/M | |
| Vision / multimodal | Yes | Yes | = Tie |
| Tool / function calling | No | Yes | |
| Self-hostable | No (API only) | No (API only) | – |
| License | Proprietary | Proprietary | – |
Price gap & when to choose each
Claude Haiku 4.5 is ~1.6× cheaper than Sonar Reasoning Pro on output tokens ($5 vs $8 per M tokens).
- You want frontier performance through a managed API
- You value reliability & ecosystem
- You don't want to manage infrastructure
- You want frontier performance through a managed API
- You need the longer 200K context window
- You want the lower output price
- You value reliability & ecosystem
- You don't want to manage infrastructure
Feature comparison
| Capability | Sonar Reasoning Pro | Claude Haiku 4.5 |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✓ |
| Tool / function calling | ✗ | ✓ |
| 1M+ context window | ✗ | ✗ |
Benchmarks: Sonar Reasoning Pro vs Claude Haiku 4.5
Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).
Benchmark data by Artificial Analysis.
How Sonar Reasoning Pro and Claude Haiku 4.5 score
| Criterion | Sonar Reasoning Pro | Claude Haiku 4.5 |
|---|---|---|
| Cost-efficiency | 3.5 | 4.0 |
| Context window | 3.5 | 4.0 |
| Openness | 1.5 | 1.5 |
| Self-hosting | 1.0 | 1.0 |
| Multimodality | 3.5 | 5.0 |
Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.
What each model is
Sonar Reasoning Pro Paid
Note: Sonar Pro pricing includes Perplexity search pricing. See [details here](https://docs.perplexity.ai/guides/pricing#detailed-pricing-breakdown-for-sonar-reasoning-pro-and-sonar-pro) Sonar Reasoning Pro is a premier reasoning model powe
Claude Haiku 4.5 Paid
Claude Haiku 4.5 is Anthropic’s fastest and most efficient model, delivering near-frontier intelligence at a fraction of the cost and latency of larger Claude models. Matching Claude Sonnet 4’s performance...
Other models in these families
These variants are tracked but not compared here — one page per family keeps the comparison readable.
Frequently asked questions
Sonar Reasoning Pro vs Claude Haiku 4.5 — which is cheaper?
Claude Haiku 4.5 is cheaper on output ($5/M vs $8/M).
Which has the larger context window?
Claude Haiku 4.5 offers the larger context window (200K tokens).
Sonar Reasoning Pro vs Claude Haiku 4.5 — which should I pick in 2026?
Choose Claude Haiku 4.5 for the lower output price ($5/M vs $8/M). It also gives you the larger 200K context window.
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